Unless you have the most popular versions of whatever vehicle you work on, you're SOL. That's why I'm about to bite the bullet and convert to an E-body HVAC system, Harley-Davidson secondary lights to replace my clouded and scratched marker light lenses, etc. And I'm really hosed if I have to re-do the sending unit in my fuel tank again. At least I can find hard parts (suspension, axles, brakes, engine) easily enough.
